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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include <memory>
#include <vector>
#include "core/fxcrt/fx_memory_wrappers.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxge/apple/fx_temp_impl.h"
#include "core/fxge/cfx_cliprgn.h"
#include "core/fxge/cfx_font.h"
#include "core/fxge/cfx_gemodule.h"
#include "core/fxge/cfx_glyphbitmap.h"
#include "core/fxge/cfx_glyphcache.h"
#include "core/fxge/cfx_renderdevice.h"
#include "core/fxge/cfx_substfont.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/fx_freetype.h"
#include "core/fxge/text_char_pos.h"
#include "third_party/base/span.h"
#if !defined(_SKIA_SUPPORT_)
#include "core/fxge/agg/fx_agg_driver.h"
#endif
#if !defined(_SKIA_SUPPORT_)
namespace {
void DoNothing(void* info, const void* data, size_t size) {}
bool CGDrawGlyphRun(CGContextRef pContext,
int nChars,
const TextCharPos* pCharPos,
CFX_Font* pFont,
const CFX_Matrix& mtObject2Device,
float font_size,
uint32_t argb) {
if (nChars == 0)
return true;
bool bNegSize = font_size < 0;
if (bNegSize)
font_size = -font_size;
CFX_Matrix new_matrix = mtObject2Device;
CQuartz2D& quartz2d =
static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatform())
->m_quartz2d;
if (!pFont->GetPlatformFont()) {
if (pFont->GetPsName() == "DFHeiStd-W5")
return false;
pdfium::span<const uint8_t> span = pFont->GetFontSpan();
pFont->SetPlatformFont(quartz2d.CreateFont(span.data(), span.size()));
if (!pFont->GetPlatformFont())
return false;
}
std::vector<uint16_t, FxAllocAllocator<uint16_t>> glyph_indices(nChars);
std::vector<CGPoint> glyph_positions(nChars);
for (int i = 0; i < nChars; i++) {
glyph_indices[i] =
pCharPos[i].m_ExtGID ? pCharPos[i].m_ExtGID : pCharPos[i].m_GlyphIndex;
if (bNegSize)
glyph_positions[i].x = -pCharPos[i].m_Origin.x;
else
glyph_positions[i].x = pCharPos[i].m_Origin.x;
glyph_positions[i].y = pCharPos[i].m_Origin.y;
}
if (bNegSize) {
new_matrix.a = -new_matrix.a;
new_matrix.c = -new_matrix.c;
} else {
new_matrix.b = -new_matrix.b;
new_matrix.d = -new_matrix.d;
}
quartz2d.SetGraphicsTextMatrix(pContext, new_matrix);
return quartz2d.DrawGraphicsString(pContext, pFont->GetPlatformFont(),
font_size, glyph_indices.data(),
glyph_positions.data(), nChars, argb);
}
} // namespace
namespace pdfium {
void CFX_AggDeviceDriver::InitPlatform() {
CQuartz2D& quartz2d =
static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatform())
->m_quartz2d;
m_pPlatformGraphics = quartz2d.CreateGraphics(m_pBitmap);
}
void CFX_AggDeviceDriver::DestroyPlatform() {
CQuartz2D& quartz2d =
static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatform())
->m_quartz2d;
if (m_pPlatformGraphics) {
quartz2d.DestroyGraphics(m_pPlatformGraphics);
m_pPlatformGraphics = nullptr;
}
}
bool CFX_AggDeviceDriver::DrawDeviceText(
int nChars,
const TextCharPos* pCharPos,
CFX_Font* pFont,
const CFX_Matrix& mtObject2Device,
float font_size,
uint32_t argb,
const CFX_TextRenderOptions& /*options*/) {
if (!pFont)
return false;
bool bBold = pFont->IsBold();
if (!bBold && pFont->GetSubstFont() &&
pFont->GetSubstFont()->m_Weight >= 500 &&
pFont->GetSubstFont()->m_Weight <= 600) {
return false;
}
for (int i = 0; i < nChars; i++) {
if (pCharPos[i].m_bGlyphAdjust)
return false;
}
CGContextRef ctx = CGContextRef(m_pPlatformGraphics);
if (!ctx)
return false;
CGContextSaveGState(ctx);
CGContextSetTextDrawingMode(ctx, kCGTextFillClip);
CGRect rect_cg;
CGImageRef pImageCG = nullptr;
if (m_pClipRgn) {
rect_cg =
CGRectMake(m_pClipRgn->GetBox().left, m_pClipRgn->GetBox().top,
m_pClipRgn->GetBox().Width(), m_pClipRgn->GetBox().Height());
RetainPtr<CFX_DIBitmap> pClipMask = m_pClipRgn->GetMask();
if (pClipMask) {
CGDataProviderRef pClipMaskDataProvider = CGDataProviderCreateWithData(
nullptr, pClipMask->GetBuffer(),
pClipMask->GetPitch() * pClipMask->GetHeight(), DoNothing);
CGFloat decode_f[2] = {255.f, 0.f};
pImageCG = CGImageMaskCreate(
pClipMask->GetWidth(), pClipMask->GetHeight(), 8, 8,
pClipMask->GetPitch(), pClipMaskDataProvider, decode_f, false);
CGDataProviderRelease(pClipMaskDataProvider);
}
} else {
rect_cg = CGRectMake(0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight());
}
rect_cg = CGContextConvertRectToDeviceSpace(ctx, rect_cg);
if (pImageCG)
CGContextClipToMask(ctx, rect_cg, pImageCG);
else
CGContextClipToRect(ctx, rect_cg);
bool ret = CGDrawGlyphRun(ctx, nChars, pCharPos, pFont, mtObject2Device,
font_size, argb);
if (pImageCG)
CGImageRelease(pImageCG);
CGContextRestoreGState(ctx);
return ret;
}
} // namespace pdfium
#endif // !defined(_SKIA_SUPPORT_)
void CFX_GlyphCache::InitPlatform() {}
void CFX_GlyphCache::DestroyPlatform() {}
std::unique_ptr<CFX_GlyphBitmap> CFX_GlyphCache::RenderGlyph_Nativetext(
const CFX_Font* pFont,
uint32_t glyph_index,
const CFX_Matrix& matrix,
int dest_width,
int anti_alias) {
return nullptr;
}
void CFX_Font::ReleasePlatformResource() {
if (m_pPlatformFont) {
CQuartz2D& quartz2d =
static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatform())
->m_quartz2d;
quartz2d.DestroyFont(m_pPlatformFont);
m_pPlatformFont = nullptr;
}
}